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BBC News Europe correspondent Gavin Lee says the EU's chief negotiator Michel Barnier has been "praising Theresa May for negotiations and I think for what she's been going through the past few days to try and hold up this deal".

He said: "The consensus of the 27 ambassadors appears to be 'keep calm and don't provoke' - the sort of advice you'd get to deal with an angry bear."

"They know how unpredictable it is in the UK.

"The EU doesn't want to slip up and say something that unstabilises Theresa May even more right now."

Image source, Getty Images

Before being an MP, Steve Barclay was an insurance company lawyer and then a regulator for the Financial Services Authority, his website says.

He also worked at Barclays bank as head of anti-money laundering and sanctions.

He lives outside Wisbech in Cambridgeshire with his wife and two children.

He was elected to Parliament in 2010 and spent four years on the Public Accounts Committee, before becoming a government whip in 2015.

In 2017, he became a Treasury minister and then this year took up a role as minister of state at the Department of Health.

Earlier this week, Amber Rudd told BBC Radio 5 Live that May's draft withdrawal agreement "does deliver" and that "perfect was never going to be an option".

Image source, UK Parliament

He's the MP for North East Cambridgeshire and supported the Leave campaign in the 2016 EU referendum.

He was a minister in the Department for Health.

He is an "uber loyalist", says the BBC's assistant political editor Norman Smith - because he has never rebelled.

Health and Social Care Minister Stephen Barclay has been appointed Brexit Secretary.

Amber Rudd becomes the sixth work and pensions secretary since 2016.

• Iain Duncan Smith held the role from May 2010 to March 2016
• Stephen Crabb held the role from March 2016 to July 2016
• Damian Green held the role from July 2016 to June 2017
• David Gauke held the role from June 2017 to January 2018
• Esther McVey held the role from January 2018 until yesterday
• Today Amber Rudd becomes the new work and pensions secretary

Image source, EPA

Downing Street confirm that Amber Rudd, who resigned as home secretary in April, will be returning to the cabinet as the Work and Pensions Secretary.

She will replace Esther McVey who stood down from the position yesterday.

Sunday Times political editor Tim Shipman is reporting that Amber Rudd is the new work and pensions secretary.

She resigned as home secretary in April, saying she had "inadvertently misled" MPs over the Windrush scandal.

Nick Eardley
BBC Scotland Westminster correspondent

BBC political correspondent Nick Eardley says it could well be Monday before the 48 letters needed to trigger a vote of confidence in the prime minister are submitted.

While it is still possible the threshold could be met today, he says "it does feel like a bit of the momentum has gone".

However, he says one minister has told him that many MPs will be going back to their constituencies to judge the mood in their local Conservative associations - and some may decide to submit a letter next week if their members don't like the deal.

Former Brexit minister Steve Baker has said he believes the Conservatives are "very close" to receiving the 48 letters needed to trigger a vote of confidence in the prime minister.

However, he said the number was more likely to be reached next week than today.

He told the BBC News Channel: "The only person who knows the number is Sir Graham Brady [chairman of the 1922 Committee of backbench MPs].

“Sufficient people have told me that I think we are very close but exactly when it’s not for me to say.”

Image source, UK Parliament

The Conservative MP Chris Green is the latest to declare publicly that he has submitted a letter calling for a vote of no confidence in the prime minister.

A member of the Brexit-supporting European Research Group, he has represented Bolton West, a constituency which voted leave in the referendum, since 2015.

Here is a list of the 21 MPs who have publicly said they have submitted letters.

A Scottish minister has accused the UK government of “blackmail” over the draft Brexit agreement.

The accusation came from Scotland’s External Affairs Minister Fiona Hyslop in response to a call from the Cabinet Office Minister David Lidington for the Scottish Government to back the deal to boost business.